﻿<p>The <em>IfcVectorOrDirection</em> enables a choice between <em>IfcVector</em> and <em>IfcDirection</em> for vector
functions.</p>
<blockquote class="extDef">NOTE&nbsp; Definition according to ISO/CD 10303-42:1992<br>
This type is used to identify the types of entity which can participate in vector computations.</blockquote>
<blockquote class="note">NOTE&nbsp; Type adapted from <strong>vector_or_direction</strong> defined in ISO
10303-42.</blockquote>
<blockquote class="history">HISTORY&nbsp; New type in IFC1.5.</blockquote>